Optimization of Spin Coated TiO2 Layer for Hole-Free Perovskite Solar Cell

The optimization of the TiO2 layer in free-hole perovskite solar cells is critical, as it strongly affects the device performance. In this study, simple FTO/TiO2/CH3NH3PbI3/C solar cells were fabricated, via two-step dipping method, with different thickness of TiO2 layer. The structure and microstru...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-02, Vol.762 (1)
Main Authors: Elshimy, Hassan, Abdallah, Tamer, Shama, Ali Abou
Format: Article
Language:English
Subjects:
Circuits
Energy conversion efficiency
Investigations
Open circuit voltage
Optimization
PbI
Perovskite
Perovskites
Photovoltaic cells
Raman spectroscopy
Short circuits
Solar cell
Solar cells
Spectrum analysis
Thickness
TiO
Titanium dioxide
X-ray diffraction
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The optimization of the TiO2 layer in free-hole perovskite solar cells is critical, as it strongly affects the device performance. In this study, simple FTO/TiO2/CH3NH3PbI3/C solar cells were fabricated, via two-step dipping method, with different thickness of TiO2 layer. The structure and microstructure of the TiO2 layers were investigated by X-Ray diffraction (XRD), Raman spectroscopy, and UV spectroscopy (UV-vis). The effect of different TiO2 thickness on the structure and photovoltaic performance of the fabricated devices were investigated using XRD and IV measurement, respectively. The photovoltaic parameters, including short-circuit-current (Jsc), open-circuit-voltage (Voc), Fill factor (F.F) and power conversion efficiency (PCE), were found to be strongly dependent on the thickness of TiO2 layer. The investigation showed that, efficient device can be fabricated by optimizing the TiO2 thickness, employing a thickness of 108 nm as an optimum thickness in this study.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/762/1/012003